On Fri, 17 May 2002, Brian Credeur wrote:

> Hi,
>
> I have a LEAF Bering 1.0-rc1 system (Shorewall 1.2.8) and have 5 static
> external IP addresses to use.  One IP is the primary of the firewall, I
> am using proxy arp for three of the IP's (DMZ network servers), and
> static NAT for the last IP (internal network system).  This is a similar
> setup to the newer example network in the Shorewall documentation.
>
> Everyting, seems to work just fine, with one exception.  After a long
> period of idleness I find that I cannot connect to external and DMZ
> hosts from the statically NAT'd system, though it can connect to
> internal network hosts just fine.  All other connections work as
> configured (DMZ<->internal, internal (masq'd) <->Internet, ...), so
> appears to be an issue specific to the static NAT.
>
> When the problem occurs I cannot make any TCP connections to the
> Internet, for example, from the static NAT'd PC.  Also, if I ping an
> Internet host, from it the packets are dropped by the firewall:
>     Shorewall:rfc1918:DROP:IN=eth0 OUT=eth0 SRC=<static_nat_host>
> DST=<non-internal_network_host> ...
>

Do you have both sides of your firewall connected to the same hub or
switch?

-Tom
--
Tom Eastep    \ Shorewall - iptables made easy
AIM: tmeastep  \ http://www.shorewall.net
ICQ: #60745924  \ [EMAIL PROTECTED]


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